refactor: Migrate externalHooks mixin to composables (no-changelog) (#7930)

## Summary
Provide details about your pull request and what it adds, fixes, or
changes. Photos and videos are recommended.

As part of NodeView refactor, this PR migrates all externalHooks calls
to `useExternalHooks` composable.

#### How to test the change:
1. Run using env `export N8N_DEPLOYMENT_TYPE=cloud` 
2. Hooks should still run as expected


## Issues fixed
Include links to Github issue or Community forum post or **Linear
ticket**:
> Important in order to close automatically and provide context to
reviewers

https://linear.app/n8n/issue/N8N-6349/externalhooks


## Review / Merge checklist
- [x] PR title and summary are descriptive. **Remember, the title
automatically goes into the changelog. Use `(no-changelog)` otherwise.**
([conventions](https://github.com/n8n-io/n8n/blob/master/.github/pull_request_title_conventions.md))
- [x] [Docs updated](https://github.com/n8n-io/n8n-docs) or follow-up
ticket created.
- [x] Tests included.
> A bug is not considered fixed, unless a test is added to prevent it
from happening again. A feature is not complete without tests.
  >
> *(internal)* You can use Slack commands to trigger [e2e
tests](https://www.notion.so/n8n/How-to-use-Test-Instances-d65f49dfc51f441ea44367fb6f67eb0a?pvs=4#a39f9e5ba64a48b58a71d81c837e8227)
or [deploy test
instance](https://www.notion.so/n8n/How-to-use-Test-Instances-d65f49dfc51f441ea44367fb6f67eb0a?pvs=4#f6a177d32bde4b57ae2da0b8e454bfce)
or [deploy early access version on
Cloud](https://www.notion.so/n8n/Cloudbot-3dbe779836004972b7057bc989526998?pvs=4#fef2d36ab02247e1a0f65a74f6fb534e).

packages/editor-ui/src/components/RunDataSchema.vue

@@ -7,10 +7,11 @@ import { useNDVStore } from '@/stores/ndv.store';
 import { telemetry } from '@/plugins/telemetry';
 import type { IDataObject } from 'n8n-workflow';
 import { isEmpty } from '@/utils/typesUtils';
-import { runExternalHook } from '@/utils/externalHooks';
+import { useExternalHooks } from '@/composables/useExternalHooks';
 import { i18n } from '@/plugins/i18n';
 import MappingPill from './MappingPill.vue';
 import { useDataSchema } from '@/composables/useDataSchema';
+
 type Props = {
 	data: IDataObject[];
 	mappingEnabled: boolean;
@@ -59,7 +60,7 @@ const onDragEnd = (el: HTMLElement) => {
 			...mappingTelemetry,
 		};
 
-		void runExternalHook('runDataJson.onDragEnd', telemetryPayload);
+		void useExternalHooks().run('runDataJson.onDragEnd', telemetryPayload);
 
 		telemetry.track('User dragged data for mapping', telemetryPayload);
 	}, 1000); // ensure dest data gets set if drop